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Ink set, textile printing method and printed textile

a textile printing method and ink technology, applied in the direction of dyeing process, inks, transportation and packaging, etc., can solve the problems of inability to use, increase the number of processes, and the ink storage stability deteriorates accordingly, and achieves low bleeding of ink. , the effect of high color developability

Inactive Publication Date: 2015-08-06
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The solution effectively achieves high color developability and minimal bleeding in printed textiles, improving the quality and stability of ink jet printed fabrics while simplifying the printing process.

Problems solved by technology

This method has problems in that the number of processes increases since a special pretreatment needs to be performed on the fabric, new components (a gelation paste, for example) or the like need to be added to the ink, and storage stability of the ink deteriorates accordingly, or the like.
In this method, it is not necessary to pretreat the fabric; however, the method is not practical since a sufficient bleeding prevention effect cannot be obtained and the storage stability of ink deteriorates.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

example 1

Preparation of Pretreatment Liquid 1

1. Production of Fine Polymer Particles 1

[0097]A reaction container was provided with a dropping device, a thermometer, a water-cooled reflux condenser, a nitrogen-introducing tube, a stirrer, and a heat regulator, and 70 parts of polycarbonate polyol (1,6-hexanediol base, Mw 1000), 26 parts of hexamethylene diisocyanate, and 76 parts of methyl ethyl ketone were added to the reaction container, followed by polymerization at 75° C. over 3 hours. A salt solution including 14 parts of methyl ethyl ketone, 4 parts of tetraethylene glycol and 1.2 parts of sodium hydroxide, which was separately prepared in advance, was added to the reaction container, followed by another polymerization at 75° C. for 2 hours. This urethane prepolymer solution was cooled to 30° C., and an aqueous solution in which 8 parts by mass of trimethylolpropane was dissolved in 260 parts by mass of water was added dropwise thereto, thereby performing a crosslinking reaction by phas...

example 2

Preparation of Pretreatment Liquid 2

1. Production of Pretreatment Liquid 2

[0125]A pretreatment liquid 2 was produced in the same manner as in the preparation of the pretreatment liquid 1 except that 4 parts of the tetraethylene glycol was changed to 4 parts of hexamethylenediamine to obtain an aqueous dispersion of crosslinkable polyurethane-polyurea. This aqueous dispersion of crosslinkable polyurethane-polyurea was filtered through a 5.0 μm filter, thereby producing an aqueous dispersion liquid of fine polymer particles.

[0126]Concentration adjustment was performed on the aqueous dispersion liquid of fine polymer particles by adding water, thereby producing an emulsion B (EM-B) of 40% solid concentration. A part of the aqueous dispersion liquid of fine polymer particles was taken to be dried, and the glass transition temperature thereof measured thereafter by a differential scanning calorimeter (EXSTAR 6000DSC manufactured by Seiko Instruments Inc.) was −20° C.; also, the particle ...

example 3

[0147]A printing sample 3 was produced in the same manner as in Example 2 except that instead of the emulsion B in Example 2, a pretreatment liquid 3 as a mixture of 50:50 of the emulsion A and the emulsion B was used. By using the printing sample 3, the abrasion resistance test, the dry cleaning test and the measurement for color developability were performed in the same manner as in Example 1. The results thereof are shown in Table 1.

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Abstract

Provided is a pretreatment liquid used when a fabric is pretreated before ink is printed on the fabric, the liquid including water, polyvalent metal ions and first fine polymer particles, wherein the first fine polymer particles are crosslinkable polyurethane and / or crosslinkable polyurethane-polyurea and have a glass transition temperature of −10° C. or lower and a particle diameter as determined by a light scattering method of 30 nm to 5 μm.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This is a divisional patent application of U.S. application Ser. No. 13 / 113,204 filed May 23, 2011, which claims priority to Japanese Application No. 2010-122406 filed on May 28, 2010, Japanese Application No. 2010-122407 filed on May 28, 2010, and Japanese Application No. 2011-039520 filed on Feb. 25, 2011, all of which are hereby incorporated by reference in their its entireties.BACKGROUND[0002]1. Technical Field[0003]The present invention relates to an ink set to obtain a printed textile having high color developability and little bleeding, a textile printing method and a printed textile.[0004]2. Related Art[0005]Unlike screen textile printing and other textile printing methods used hitherto, ink jet textile printing has an advantage in that operations such as manufacturing, storing and cleaning of a plate are not necessary and that an image with superior gradation properties can be formed on demand. Compared to screen textile printing...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B41J3/407D06P1/673D06P1/52D06P5/30D06P1/44
CPCC09D11/40C09D11/54D06P1/445D06P1/5285D06P1/67358Y10T428/24802B41J3/4078D06P1/525D06P5/30
Inventor YATAKE, MASAHIRONAGASE, MAKOTO
Owner SEIKO EPSON CORP
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